The TweakGuides Tweaking Companion Version 3.2 is the complete system optimization guide for Windows XP users. It contains an enormous amount of detailed descriptions and resources together in one free 175-page downloadable PDF file. The guide contains all the information you need to optimize, troubleshoot and maintain your system. Basically the TweakGuides Tweaking Companion is the mother of all Windows XP tweak guides and system optimization guides.